PHP: Obtendo o título de um vídeo no YouTube

<?
function getTitle($url){
   parse_str( parse_url( $url, PHP_URL_QUERY ), $youtubeID );
   $url = "http://gdata.youtube.com/feeds/api/videos/". $youtubeID['v']."?v=2";
   $xml = simplexml_load_file($url);
   return $xml->title;
}
$url_youtube = "http://www.youtube.com/watch?v=igoUEEV7zls";
echo getTitle($url_youtube);
?>

<? function getTitle($url){ parse_str( parse_url( $url, PHP_URL_QUERY ), $youtubeID ); $url = "http://gdata.youtube.com/feeds/api/videos/". $youtubeID['v']."?v=2"; $xml = simplexml_load_file($url); return $xml->title; } $url_youtube = "http://www.youtube.com/watch?v=igoUEEV7zls"; echo getTitle($url_youtube); ?>